<?php

/*
	Question2Answer (c) Gideon Greenspan

	http://www.question2answer.org/

	
	File: qa-include/qa-ajax-version.php
	Version: See define()s at top of qa-include/qa-base.php
	Description: Server-side response to Ajax version check requests


	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU General Public License
	as published by the Free Software Foundation; either version 2
	of the License, or (at your option) any later version.
	
	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	GNU General Public License for more details.

	More about this license: http://www.question2answer.org/license.php
*/

require_once QA_INCLUDE_DIR . 'qa-app-admin.php';


$uri = qa_post_text('uri');
$versionkey = qa_post_text('versionkey');
$urikey = qa_post_text('urikey');
$version = qa_post_text('version');

$metadata = qa_admin_addon_metadata(qa_retrieve_url($uri), array(
    'version' => $versionkey,
    'uri' => $urikey,

    // these two elements are only present for plugins, not themes, so we can hard code them here
    'min_q2a' => 'Plugin Minimum Question2Answer Version',
    'min_php' => 'Plugin Minimum PHP Version',
));

if (strlen(@$metadata['version'])) {
    if (strcmp($metadata['version'], $version)) {
        if (qa_qa_version_below(@$metadata['min_q2a']))
            $response = strtr(qa_lang_html('admin/version_requires_q2a'), array(
                '^1' => qa_html('v' . $metadata['version']),
                '^2' => qa_html($metadata['min_q2a']),
            ));

        elseif (qa_php_version_below(@$metadata['min_php']))
            $response = strtr(qa_lang_html('admin/version_requires_php'), array(
                '^1' => qa_html('v' . $metadata['version']),
                '^2' => qa_html($metadata['min_php']),
            )); else {
            $response = qa_lang_html_sub('admin/version_get_x', qa_html('v' . $metadata['version']));

            if (strlen(@$metadata['uri']))
                $response = '<a href="' . qa_html($metadata['uri']) . '" style="color:#d00;">' . $response . '</a>';
        }

    } else
        $response = qa_lang_html('admin/version_latest');

} else
    $response = qa_lang_html('admin/version_latest_unknown');


echo "QA_AJAX_RESPONSE\n1\n" . $response;



/*
	Omit PHP closing tag to help avoid accidental output
*/